Stock-feeding magazine for printing presses



Dec. 4, 1928. 7 1,694,015

A. KLUGE ETAL STOCK FEEDING MAGAZINE FOR PRINTING PRESSES Filed Dec. 17, 1925 4 Sheets-Sheet l v !nven+ors: Abel Kmge n Enex/al Kluge Dec. 4, 1928. 1,694,015

, A. KLUGE ET AL STOCK FEEDING MAGAZINE FOR PRINTING PRESSES Filed Dec. 1'7, 1925 4 Sheets-Sheet 2 65 60 54' EEF IE 69 I =;F

:ii L eg g -F 24 I6 1a T 57 Im/enfors:

Abel Kluge and '56 155 Enm/al Kluga Hornqys Dec. 4, 1928. 1,694,015 A. KLUGE ET AL STOCK FEEDING MAGAZINE FOR PRINTING PRESSE'S Filed Dec. 17, 1925 I 4 Sheeis-Sheet 5 106 Fig H lmfeni'orsz Abel Klu e and EH /Cl [Age 3 244mg C fiorrl g Dec. 4, 1928.

( 1,694,015 A. KLUGE ET AL FEEDING MAGAZINE FOR PRINTING PRESSES STOCK Filed Dec. 17, 1925 4 Sheets-Sheet 4 Invenfors: Abel Kiu e and Arfornevs.

. mechanism.

Patented Dec. 4, 1928.

UNITED STATES PATENT" OFFICE.

ABEL KLUGE AND ENEVAL KLUGE, OF ST. PAUL, MINNESOTA, ASSIGNOBS TO BRANDT- J'EN AND KLUGE, INCL, OF ST. PAUL, SOTA.

MINNESOTA, A CORPORATION OF KENNE- STOCKJEEIJING MAGAZINE FOR PRINTING PRESSES.

Application filed December Our invention relates to stock feeding magazines for printing presses emp oying automatic sheet feeding mechanism adapted to take sheets at given receiving positions.

Anobject'of the invention is to provide a simple, durable and efficient stock feeding magazine designed to accommodate a pack of sheets and to advance the pack automatically, whereby the foremost sheet thereof will be presented in position to be taken by the associated sheet feeding mechanism at the time for the taking of a sheet by said Another object is to provide a device of the present nature adapted to accommodate a pack of sheets and designed for use in connection with a sheet feeding member operating first to grasp the foremost sheet of the pack, then shiftit in the plane of the second sheet and then carry said grasped sheet from the pack, said device including means associated therewith and co-operating with said sheets to provide for the separation of the first sheet from the second sheet, said separating means being adjustable to suit stock of various thicknesses.

A further object is to provide a device with sheet separating means, as above, the same including means for flattening bowed stock to insure the effective operation of said sheet separating means. I

An additional object is to supply a stock feeding magazine'adapted to hold a pack of sheets on edge, said magazine having a skeleton bottom consisting of.. rails adjustable to suit irregularities in stock such as carton blanks and the like.

Another object is to supply a stock magazine for advancing a pack of folded sheets or other units not of uniform thickness, the same including aApack advancer adapted to be tilted automatically during the advancelnent thereof to maintain the foremost of the folded sheets in given relation with respect to the magazine.

In the drawings. Fig. 1 is a perspective view of stock feeding magazine embodying our invention: Fig. 2 is an elevational view of one end of the magazine, some of the parts at the front thereof being broken away Fig. 3 is an elevational view of the other end of the magazine: Fig. 4 is a plan view of the device: Fig. 5 is an enlarged elevational view of a portion of the structure shown inFig. 3,

'17, 1925. Serial No. 75,961.

parts thereof being broken away and in position other than that seen in said Fig.3; Fig. 6 is a detail sectional view taken as on the line 6-6 of Fig. 4; Fig. 7 is a transverse sectional view, the same being taken on the line 7--7 i of Fig. 4; Fig.8 is a similar view taken on the line 1010 of Fig.9, the same illustrating the principal details of the sheet separatmg device; Fig. 11 IS a perspective view in detail ofthe lower end of one of the sheet flattening members shown in Fig. 9; Figs. 12

and 13" are diagrammatical views showing extreme relative positions of certain ofthe parts of the feed interrupting" mechanism, and Fig. 14 is an enlarged sectional-view in detail taken as on the line 1414 of Fig. 9.

The present improvement is adapted particularly, though not exclusively, for use in connection with our invention in press feedi'ng mechanisms, disclosed in Patent No. 1,472,656 of Oct. 30, 1923, wherein an oscillating sheet feeding element is employed, the same being co-ordinated with press mechanism and movable from sheet receiving position to sheet discharging position and back again. Preparatory to its swingtoward the printing couple, and after grasping the first sheet of a pack, the sheet feeding element shifts the grasped sheet in parallelism to the plane of the second sheet. Said patented sheet feeding mechanism having proven to be capable of efliciently handling wide ranges of stock, it has remained to perfect an equally efiicient stock feeding magazine for presenting sheets in position to be taken by said sheet feeding element.

The structure illustrated in the drawings is adapted to be substituted for the ordinary hand feed board of a printing press having a depending stud at one end thereof removably and swivelingly socketed in a bore 10 (Fig. 7) of the press frame 11, the other end of said board bearing upon or overhanging a part of the press frame, as at 12 (Fig. 1). Our improvement includes a supporting post 13 for the magazine proper, said post being designed to be swivelingly socketed in the bore 1O and held at different elevations by part 12. This stud 30 is fitted means of a collar 14 on said post, said collar forming a rest for the post 13 and being fitted with a set screw 15for adjusting the side frame members 19 and 20, supported upon bed-plates 21 and 22, respectively. The bed-plate 21 is trunnioned on the supportmg arm 16, a boss 23 being formed on said bedplate and inserted in a transverse bore 24 in said arm 16, the boss 23 normally being held against turning in said arm by means of a set screw 25 (Fig. 3) threaded in the arm and turned'against said boss. The second bedplate 22 has a leg 26 depending therefrom, a foot 27 being formed on said leg. An adjustable rest 28 in the form of a bolt threaded in said foot is adapted to bear upon the press part 12 (Fig. 1), when the magazine is swung closed into operative position. The forward end of the foot 27 is slotted, as at 29, to -re ceive a threaded stud 30 risin from the press with a nut 31, which may be turned down against the upper face of the foot 27 to secure the magazine against swinging away out of operative relation with the press. The side frame members 19 and 20 are rigidly joined by means of a tie-bar 32 and a tie-shaft 33. The tie-bar 32 is secured at one end to a depending bracket 34 on the bed plate 21, and at its other end to a. similar bracket 35 on the bedplate 22. The tie-shaft 33 is secured at one end thereof to the rear extremity of the side frame member 19 and at its other end to the rear extremity of the side frame member 20. The structure thus far described forms a frame work for a rack to receive a pack of sheets on edge. The bottom support of this rack comprises a plurality of rails 36, each slidably bearing at its rear end on the tieshaft 33 and each formed at its forward end with a foot 37 bearing upon the tie-bar 32. These rails 36 slope upward from back to front of the device to carry a pack substantially inclined to the vertical. WVe provide a sliding back-rest for stock carried on edge by said rails, said back-rest including a carrier-shaft 38 and back-bars 44 mounted thereon. Each end of the carrier shaft is journaled in a bearing 40 formed integrally with a block 41. Each of the side frame members has a way 42 therein slidably receiving one of said bearing blocks 41, said ways being parallel one to the other and to the sheet supporting surfaces of therails 36. A set desired adjustments of back-bar angularly shaft tosecure the same against turning.

Back-bars 44 traverse the horizontal carriershaft 38, each being slid-ably journaled between the ends thereof on said carrier-shaft and fitted with a thumb screw 45 adapted to be turned against the carrier-shaft, to secure and longitudinally of carrier-shaft. Normally, the pack supporting faces of the back bars 44 lie in a common plane substantially at right angles to the pack supporting surfaces of the rails 36. To aid in locating the back-bars 44 in such normal position, we supply a stop-bar 46 (Figs. 7 and 8) against which the lower ends of the back-bars 44 may be swung. This stop-bar 46 is secured to and supported at -its ends by lugs 47 depending from the bearings 40 in which the carriershaft 38 is mounted. Each of two tapes 48, one for each of the bearings 40, is secured at one end to the upper side of its respective bearing, the other end thereof being attached to a drum 49 on a winding shaft 50 journaled in the forward ends of the side frame members 19 and 20.

Disposed over the bed-plate 21 and loosely mounted on the winding shaft 50 is a rockerdisc 51 to which an arcuate bracket 52 is secured. In the end of this bracket 52 and over the center of the supporting post 13 is screw ably secured vertically on said rod 56 by a set screw 57" and formed with an apertured head 58 through which the screw 53 passes said head 58 being adapted alternately to engage the head of the screw 53 and 55 on said screw. With the reciprocating rod 56 and rocker-disc 51 connected. as above explained it will be understood that the latter is swung in one direction on the upward thrust of the rod 56 and reversiblv swung on the downward thrust of said rod.

Adjacent to the rocker-disc 51 and keved to the winding-shaft 50 is a ratchet wheel 59 which is turned, upon one throw of the rockerdisc 51,by a gravity depressed pawl 60 mounted on a lug or enlargement 51 on said rockerdisc. Thus turned, step-bv-step, by the the nut rocker-disc 51, the ratchet wheel 59 impart-s I turned preparatory to a new Working throw. This end is accomplished by the use of an antibacking pawl 61 (Fig. 3). Said ant-ibacking pawl 61, pivoted on a pintle- 62 carried in a bearing 63 on the bed-plate 21, is normally yieldingly pressed against the teeth. of the ratchet wheel 59 by a spring 64. In re-loading the magazine, it is of course required that the back rest be retracted and to accomplish this it is necessary to disengage both of the pawls 60 and 61 from the teeth of the ratchet wheel 59. Said pawls are thus disengaged by a simple tripping device which, in addition to its main function, acts as a guard for said ratchet wheel. This tripping device consists of a circular plate 65 loosely mounted on the winding-shaft 50 and formed with an annular flange 66 overre-aching the toothed perimeter of the ratchet wheel 59. Said flange 66 is cut away at 67 (Fig. 5) for the pawl 60 and at 68 for the pawl 61 so that in the normal position of the circular plate 65 (Fig. 3), said pawls are free to operate.

Functioning to hold said plate 65 in said normal position, is a weighted lever 69, the same sloping forward from the pintle 62 whereupon it is mounted. This weighted lever 69 carries a pin 70 having sliding engagement with the plate 65, the inner end of said pin being inserted in a radial slot 71 formed in said plate. Reaching upwardly and rearwardly from the lever 69 at its pivotal point on the pintle 62 is a. handle 72 by which said lever may be swung back (Fig. 5). In thus swinging said lever 69, the flange 66 is caused to retract the pawls and 61 and slip be tween the same and the teeth of the ratchet wheel 59. Though off-center, in its pawl tripping position, the weighted lever 69 is held elevated by the medium of the circular plate and flange 66, the latter being yieldingly frictionally engaged by the retracted pawl 61. With the ratchet wheel 59 free from engagement by the pawls 60 and 61, the back-rest carriage, which consists of the previously described block 41, bearings 40 and carrier-shaft 38, may be pulled back in the frame members 19 and 20. The back-bars 44 being retracted in the pulling back-of said carriage, sheets may be placed on the rails 36.

If the stock is irregular in out-line as is the casein carton bla-nks.the rails 36' are suitably adjusted horizontally on the tie-shaft 33 to suit the underside of the pack and to give firm footing thereto. Side-guides 73. also adjustable horizontally on said tie-shaft 33, are set closely againstthe sides of a pack. Experience shows that the foremost sheet of a pack should rest on the rails near the forward ends thereof, the proximity of said sheet to termined. the desired sheet receiving position The pack advancing mechanism uninterrupted in its operation will advance the thinner stocks faster than the sheets can be taken from receiving position by the press feeding element. We provide means, now to be described, for interrupting the action of the pack advancing mechanism to adapt the in agazine to all ordinary stocks. lParalleling the winding-shaft 50 is a rock-shaft 7 5, the same being mounted in upright extensions 19 a'nd 20 of the side frame members 19 and 20.

Also paralleling the winding-shaft 56 is a cross-bar 76, said cross-bar being supported at its ends by brackets 19 and 26 upstanding from the side frame members 19 and 20. respectively. Fixed at one end to the endof the rock-shaft 75 overlying the bed-plate 21, is a right angular crank 77, the free end 77 of which extends toward the rear of the magazine. Extending through this crank at the angle thereof is a pin 78 (Fig. 9). Gaught at one end over the inner end of this pin 78 is a coiled tension spring 79, the other end of said spring being fastened to an anchoring pin 80 extending outward from the upstanding bracket 19". The rocker-disc 51 has an opening 81 therein freely receiving the outer end of said pin 7 8 in the crank 77, the rear wall of said opening 81 providing an abutment 82 for the pin. Upon an upward thrust of the reciprocating rod 56 the abutment 82 of the rocker-disc 51 gives way through a limited distance, to the pin 7 8 upon which the spring 79 pulls. Through this pin and under the ac tion ,of said spring 7 9. the crank 77 is swung to tu'trn the rock-shaft 75 in a clockwise direction (Figs. 3, 12 and 13) and to elevate the free end 77 of said crank. Upon a down ward thrust of the reciprocating; rod 56, the abutment 82 of the rocker-disc 51 carries the pin 78 forward therewith, against the action of the spring 79. the result being that the rock-shaft 75 is turned in a counter-clockwise direction (Figs. 3, 12 and 13) and the free end 77 a of said crank 7 7 depressed.

The pawl 60 has a pin 83 in the free end thereof. said pin being movable up and down in a slot 84 (Fig. 8) in the disc-lug 51 and limited in its upward throw by the top of said slot. Medially pivoted on said disc-lug 51 is a lever 84. the rearward end 84 of which is weighted as by a weight 85 and the forward end 84 thereof disposed beneath the pin 83 to engage and lift the same in the slot 84. A paddle shaped gauge 86 is hung from the rock-shaft 75 in the path of a pack ad vanced by the back-bars 44. Upon the clockwise throw (Figs. 3. 12 and 13) of the rockshaft 7 the gauge 86 is swung rearwardly toward the pack and beyond the sheet receiving plane if the first sheet of the pack is not far enough forward to occupy that plane.

- When said gauge 86 passes through said sheet receiving plane, the rock-shaft 7 5 is un obstructed in its clockwise movement and swings the arm 7 7* of the crank 77 far enough upward to strike the weighted end 84 of the lever 84 and thereby swing the end 84". of said lever downward from the pin 83 in the pawl 60. Thus freed from the lever 84, the pawl drops into engagement with the teeth of the ratchet wheel 59 (Fig. 12). Upon the next counter-clockwise throw of the rocksha-ft (Figs. 3, 12 and 13), the gauge 86 is swung forwardly from the pack into position to clear the sheet feeding element of the 1 press, as it moves through that part of its path for receiving and taking a sheet from the magazine. Such counter-clockwise throw of therockeshaft 7 5 is effected upon a clockwise throw of the rocker-disc 51 and upon the turning of the ratchet wheel 59 by the dog 60 engaged therewith, which turning of .said ratchet wheel, it will be remembered,

causes the pack' shifting mechanism to ad Vance a step. If, upon the next clockwise throw of the rock-shaft 75,-the gauge 86 meets the foremost sheet of the pack in the sheet receiving plane, the turning of said rock-shaft, by the action of the spring 79, will be stopped short of its normal throw with the result that the crank arm 77 will fail to trip the lever 84 and free the pawl 60 for re-engagement with the ratchet wheel 59. Thus it will be understood that the op eration of the ratcheting pack advancing mechanism is automatically interrupted to avoid advancing a pack so that the foremost sheet thereof will pass the selectedsheet receiving plane. It is a very simple matter to set the mechanism to accord with a given sheet receiving position. This is accomplished in an adjustment provided for the gauge 86 (Figs. 1 and 6). Said gauge depends from a bearing 87 loosely mounted on the rock-shaft 75. Adjacent said bearing 87 is a. companion bearing 88 fixed to the rock-shaft 75 and formed with a radial lug 89 having a right angular abutment, extension 90 thereon. The gauge 86 is also formed with a lug 91 and in this lug is threaded a thumb screw 92, the end of which engages the abutment 90 on the fixed bearing 88.

stem 93 anchored at one end in the lug 91 on the gauge paddle 86 passes freely through a slot in the lug 89 on the fixed bearing 88.

coiled expansion spring 94 interposed between said lug 89 and a nut 95 on said stem 93 acts to hold the gauge paddle 86 in position angularly oft-he rock-shaft 7 5 withthe thumb screw 92 hearing against the abutment extension 90 of the'fixed bearing 88. Said thumb screw 92 is turned one way to swing the gauge paddle 86 rearwa-rdly on the rockshaft 75, such adjustment being made when it is desired to maintain the first sheet of a pack in receiving position back of extreme forward sheet receiving position. Conversely, the thumb screw 92 is turned the other way to permit the gauge paddle 86 to swin forwardly on the rock-shaft 75 and thereby secure an adjustment of said member, wherein the foremost sheet of a pack will be maintained in position co-incident with or more nearly approximating said extreme forward sheet receiving position.

When exceptionally heavy stock is used, the drums 49 on the winding-shaft 50 may be too small in diameter to cause the advancement of a diminishing pack at sufficientspeed to maintain the first sheet thereof in position to be received by the press feeding element. The substitution of larger drums for smaller ones will meet this condition. However, the

- use of such larger drums, when light stocks are used not only requires that the operation of the pack advancing mechanism be interrupted very frequently, but it results in advancing a pack too far during a forward step thereon. We, therefore, provide an adapter for each drum 49, which adapters are quickly and easily applied to their respective drums temporarily to increase the diameters thereof. In Fig.' 14, we show one of the drums 4 9 in detail. These drums are similarly constructed, each comprising a pair of semi-cylindrical members 96 and 97 adapted to fit around the winding-shaft 50. A clamping screw 98, free to turn in a bore in the member 96 and in a bore in the windingshaft 50, is threaded to fit a threaded bore in the member 97. Advantage is taken of the split form of the drum 49 to-fasten the tape 48 thereto. Before applying the member 96 to the winding-shaft 50, the end of the tape 48 is placed over said winding-shaft and said member 96 thereafter fitted in place upon said tape. Subsequently applying the drum member 97 and drawing said drum members 96 and 97 together by theclamping screw 98 causes the tape to be firmly gripped between the member 96 and winding-shaft 50 and between said members 96 and 97. A secure attachment of tape to drum is thus provided, the tape being caught so as to be properly wound on the drum 49 upon the drum longitu-dinally'thereof and into drum enlarging relation shown in said Fig. 14.

The removal of an adapter 99 from its respective drum is readily accomplishedby reversing the simple operation attended in the application of the adapter.

In some instances and particularly in the feeding of carton blanks it has been found that sheets or blanks tend to cling together in the magazine, so that when the first' sheet or blank is taken by the feeding element the next sheet or two of the pack will be carried away with it or otherwise objectionably displaced. To avoid any difficulties of this nature, we supply a separator that permits of the taking of the foremost sheet of the pack, but holds the next few succeeding sheets in proper position, while the first sheet is stripped therefrom. This separator includes 21. depending hanger-bar 102 '(Figs. 1 and 10) vertically adjustable in a bearing 103 mounted on the cross-bar 76 which bearing, in turn, is horizontally adjustable on said cross-bar. Said hanger-bar 102 parallels the plane of the first sheet of a pack in sheet receiving position, the lower end of said hanger-bar being stationed forwardly of such first sheet and beneath the upper edge thereof. At said end of said hanger-bar and anchored therein at one of its ends is a tubular guide 103 (Fig. 10) upon which a. yoke-like frame 104 is slidably mounted, the branches 105 of said frame slidably embracing said hanger-bar. Pivoted between depending tip portions 106 of the branches 105 is a sheet separating gauge 107 comprising a strip of spring metal looped upon itself near the middle thereof. One leg 108 of the looped gauge structure is turned inward to ward the other leg 109 to form a foot member 110 against the underside of which the upper edges of the second and a few others of the sheets of a pack may abut, said leg 109 being the longer and providing an abutment for the upper front margin of the first sheet of the pack. The pivoted connection between the separating gauge 107 and yoke-like frame 104 is made by means of a pintle 111, which passes through the foot 110 of the depending portions 106 of the frame branches 105. The leg 109 of the separating gauge 107 tends to spring away from the tip of the foot 110 on the leg 109,the distance between said foot tipand the adjacent face of the leg 109 being regulated by an adjusting screw 112. This screw, threaded in the leg 109 and arranged with the head thereof bearing against the leg 108, is turned in one direction to narrow the space between foot 110 and leg 109 and turned reversely to permit of the widening of said space. Said screw 112 is adjusted to accord with the thickness of the sheets of a pack in the magazine, whereby the first sheet only may be elevated to pass between the leg 109 and foot 110. Thus it will be understood that the separating gauge 107 properly set to suit a given stock and by means of its foot 110 will prevent any but thefirst sheet of the pack from being lifted by the sheet feeding element of the press, thereby resulting in the stripping of such first sheet from the second sheet even against substantial resistance as is experienced in the stripping apart of carton blanks. The sheet separating gauge 107 yields to the pressure thereagainst of the first sheet of an advancing pack, whereby said gauge is rendered self-adjustable to any selected sheet receiving position. In this connection it will be noted that a coiled expansion spring 113, encircling the tubular guide 103 and interposed between the frame 104 and a tension adjusting nut 114 on said guide, operates yieldingly to hold said gauge carrying frame 104 at its rearward limit on said guide 103. Also, it will be observed that a pin 115 is slidably fitted within the tubular guide 103. The rear end of this pin projects from the guide and abuts at its extremity against the forward side of the leg 109.

\Vithin the tubular guide 103 and bearing at the rear end thereof against the forward end of saidpin 115 is an expansion spring 116, said spring having as an abutment for the forward end thereof a stop-pin 117 anchored at its ends in the frame 104 and freely movable in opposed slots 118 in the guide 103, one of which slots is clearly shown in Fig. 10. The spring pressed pin 115 yieldingly keeps the separating gauge 107 properly adjusted angularly to accord with variations in the inclination of the sheets of a packin the magazine, while the spring 113 yields to permit of self-adjustment of the gauge carrying frame 104 under the pressure of an advancing pack.

The sheet separating gauge 107 functions best when the sheets of a pack are fiat and to insure such condition in a pack of sheets in the magazine, we supply a pair of anti-bowing devices (Figs. 9 and 11') to press a pack flatly against the back-bars 44. These anti-bowing devices are identical, each one having a hanger-bar 120 vertically adjustable in a bearing 121, which bearing, in turn, is adjustable horizontally on the cross-bar 76. A lever 122 depending from said hanger-bar 120 is pivoted thereto and carries a roller 123 at its lower end. Stretched between a lug 124 at the back edge of the lever 122 and a lug 125 at the back edge of the hanger-bar 120 is a tension spring 126 which operates yieldingly to swing the lever 122 rearwardly to position wherein a stop 127 on said lever engages the hanger-bar 120. Either or both of the antibowing devices may be used, each being set so that the roller 123 will bear against the foremost sheet of a. pack in sheet receiving position, the engagement of said rollers serving to press the sheets fiat and thereby render the sheet separating gauge 107 uniformly effective under all conditions.

The present device is adapted to accommodate folded sheets, envelopes, shipping tags and other stocks which form irregular packs. Since only the foremost sheet of a pack need approximate selected sheet receiving position, it follows that the remaining sheets may occupy any convenient relation with respect thereto so long as said sheets are brought into proper position as'they become first in a diminishing pack. Reference now being had to Figs. 2, 4, 7 and 8, it will be seen that the carrier-shaft 38 may be freed by loosening the screws 43 in the bearings 40 so that said shaft may turn in said bearings and the backthrough which a threaded stud 133 extends.

This stud 133 is anchored in said frame member 20 and is fitted with a wing-nut 134 adapted to be turned against said ear and to clamp the rail 130 against said frame member in variously inclined positions. Irregular packs of folded V or other sheets are placed in the magazine, the thickest edges of the sheets upon the bottom rails 36. With the first sheet of such a pack in desired sheet receiving position and in a plane at right angles to the bottom rails 36, the last sheet will be tilted with respect to that plane. The back-bars 44 are brought up against the back of the pack, said back-bars tiltinginto appropriate pack supporting position, as shown, for example, in dotted lines Fig. 2. The rearward end of the rail 130, by the manipulation .of the wing-nut 134,is then elevated to bring the upper edge thereof against the underside of the roller 129. This roller 129, riding along said adjusted rail, as the pack is advanced, acts through the lever 128 to turn the carriershaft 38 and progressively tip the upper ends of the back-bars .44 rearwardly. Thus tilting, said back-bars 44 are brought-gradually into parallelism with the sheet receiving plane as the advancing pack diminishes, whereby each sheet, as it becomes the'first of the pack, is presented to the sheet feeding element of the press in said receiving plane.

The trailing part of a heavy sheet taken from the magazine by a press feeding element may be kept from settling too rapidly by means of fenders 135 slidablymounted on the tie-bar 32'-and secured thereto in various adjusted positions by means of thumb screws 136 threaded in said fenders. and directed to bear against said tie-bar 32.

Changes in the specific form of our invention, as herein disclosed, may be made within the scope of what is claimed without departing from the spirit of our invention.

Having described our invention,-what"we and independently adjustable thereon between said frame members, said rails being adapted to support -va'rious irregularly shaped packs of sheets on edge, side guides .also mounted on said tie members and-independently adjustable thereon to suit different packs, a back-rest for a pack of sheets on said rails, and means for advancing said backrest. 2. In a stock feeding magazine, side frame members, rails supported from and independently adjustable between said frame members, said rails being adapted to support various irregularly shaped packs of sheets on edge, a back-restfor a pack on said rails and means for-advancing the back-rest, said back- Irjest including independently adjustable backars.

3. In a stock feeding magazine, side frame members, inclined rails supported by and independently adjustable between said members, said rails being adapted to Support varlous irregularly shaped packs of sheets on edge, a back-rest for a pack on said rails, and

means for moving said back-rest to advance the pack in themagazine, and side guides'sup ported .by and independently adjustable between said frame members for packs placed on said rails.

4. In a stock feeding magazine, side frame members, inclined rails supported by and independently adjustable horizontally between said members, said rails being adapted to support various irregularly shaped packs of sheets on edge, a back-rest for a pack on said rails, and means for movingosaid back-rest to advance the pack in the magazine.

, '5. In a stock feeding magazine, side frame members, a member carried thereby for advancing a pack of sheets, means for moving said member including a shaft journaled in said frame members, tapes connecting said advancing member with said shaft, a rockermember loosely mounted on said shaft, a ratchet wheel fixed to the shaft, a pawl on the rocker-member arranged to engage said ratchet wheel and turn the same and said shaft in a direction to wind in said tapes,

means on the shaft for manually turning the same in such direction, a spring pressed antibacking pawl engaging said ratchet wheel, a

tripping member for both pawls, said tripping member forming a guard for said ratchet Wheel, said anti-backing pawl being adapted to hold said tripping member in pawl tripping position.

6. In a stock feeding magazine, side frame members, a member carried thereby for advancing a pack of-sheets, means for moving said member including a shaft journaled in advancing member with said shaft, a rockermember loosely mounted on said shaft, a ratchet wheel fixed to the shaft, a pawl on the rocker-member arranged to engage said ratchet wheel and turn the same and said shaft in a direction to wind in said tapes,

means on the shaft for manually turning the same in such direction, a spring pressed antibacking pawl engaging saidratchet wheel, a tripping member for the anti-backing pawl, said pawl being adapted to hold said tripping member in pawl tripping position.

7. Ina device of the class described, a rest for advancing a pack of sheets, a rockermember, a revoluble element," ratcheting means of engagement between said rockermember and revoluble element, the same including a pawl carried by the former member, pawl releasing means, connecting means between the revoluble element and rest for advancing the latter, a rock-shaft, a spring to turn the rock-shaft in one direction, said rocker member serving to turn the rock-shaft in the reverse direction against the action of said spring, a gauge angularly adjustable on the rock-shaft and arranged to engage the first sheet of the pack in predetermined position of advancement thereof and thereby arrest the turning of said rock-shaft by said spring within the normal yielding throw thereof, and means actuated by the rock shaft upon the normal throw thereof to render said pawl releasing means inoperative.

8. ,In a device of the class described, a rest for advancing a pack of sheets, a revoluble element, connecting means between the revoluble element and rest for advancing the latter, a rocker-member for rotating said rev-- oluble element in one direction, a rock-shaft turned in one direction by said rocker-member, means yielding to said rocker-member for turning said rock-shaft inthe reverse direction, a gauge on the rock-shaft adapted to be swung thereby toward-and away from the foremost sheet of the pack, said gauge being adapted to engage such sheet in given position of advancement thereof and to be thereby stopped short of its normal throw in the direction of the pack, said rock-shaft being correspondingly arrested in its gauge swinging movement, and means associated with Fifi-id rock-shaft to prevent the driving of the revoluble element by said rocking-member when the normal throw of-said rock-shaft is prevented by engagement of the gauge with the pack. v

9. In a device of the class described, a rest for advancing a pack of sheets, a rockermember a revoluble element, ratcheting means of engagement between said rockermember and revoluble element, the same including a pawl carried by former member, pawl releasing means, connecting means between the revoluble element and rest for advancing the latter, a rock-shaft, a spring to turn the rock-shaft in one direction, said rocker member serving to turn the rock-shaft in the reverse direction against the action of said spring, a gauge on the rock-shaft 'ar ranged to engage the first sheet of the pack in given position of advancement thereof and thereby arrest the turning of said rockshaftby said spring within the normal yielding throw thereof, and means actuated by the rock-shaft upon the normal-throw thereof to render said pawl releasing means inoperative.

10. The combination with a sheet feeding element adapted to receive sheets at a given receiving position, of a movable member for advancing a pack of sheets, said member being adapted to assume various angular positions to suit the" inclination of sheets of different stock, means for advancing said memher to shift the pack and place the first unit thereof in receiving position, and an adjustable cam device for tilting said member toward parallelism with said given sheet receiving position during advancement of the pack.

11. The combination with a sheet feeding element adapted to receive sheets at a given receiving position, of an inclined frame for carrying a pack of sheets on edge, a sliding, tiltable back rest for said pack, means for advancing the back rest, a cam rail tiltably adjustable on the frame, and a rail follower secured to said tiltable back rest and co-operating with said cam rail, said back rest being adapted to be swung toward parallelism with said given receiving position during the advancement of a pack thereby.

12. A stock feeding magazine including a pack rest, means for advancing the rest, said rest being initially angularly adjustable to suit a given pack of sheets, and means for progressively tilting said advancing rest to present the uppermost unit of a diminishing pack in given feeding position, said tilting means being adjustable to suit various stocks.

13. In a stock feeding magazine, a movable pack advancing member, mechanism for moving said member to thrust the first sheet of a pack toward given receiving position, said mechanism including a revoluble element, a drum on said revoluble element, a flexible connecting medium attached to said drum, and an adapter removably applicable to the drum to increase the diameter thereof, said flexible medium being adapted to be wound on the drum in the absence of the adapter and in the presence thereof to be wound on said adapter and to hold the same on said drum.

14. In a stock feeding magazine, a movable pack advancing member, mechanismfor moving said member to advance a pack of sheets,

Inn

be wound on the revoluble element in the absence of the adapter and in the presence thereof to be wound on said adapter.

15. In combination, an advancing member a revoluble element, a tape interposed between said advancing member and revoluble element, an adapter ring applicable to said element, said adapter ring being split to receive the tape, said tape being adapted to be wound on the revoluble element in the absence of the adapter ring and in the presence thereof to be wound on said adapter ring.

16. In a stock feeding magazine, a bottom rest for supporting a pack of sheets on edge and a back rest for the pack, said back rest comprising a plurality of upstanding supports spaced apart and adjustable sidewise ofthe magazine.

17. In a stock feeding magazine, a bottom rest for supporting a pack of sheets on edge, side guides for the pack, one thereof being adjustable, and a back rest for the pack,-said back rest comprising a plurality of upstanding supports adjustable sidewise of the magazine.

18., In a stock feeding magazine, a bottom rest for supporting a pack of sheets on edge, a pair of adjustable side guides for the pack, and a back rest comprising a plurality of up standing supports independently adjustable sidewise of the magazine.

19. In a stock feeding magazine, a bottom rest for supporting a pack of sheets on edge, a back rest for the pack, and sheet separating means co-operating with the foremost sheets of the pack, said back rest comprising supports spaced, apart and adjustable to clear said means."

20. In a stock feeding magazine, a bottom rest for supporting a pack of sheets on edge, a back rest for the pack, means for advancing the pack to dispose the foremost sheet thereof at a given receiving position. and sheet separatin g means co-operating with the foremost sheets and having a portion thereof extending back of the plane of the foremost sheet, said back rest including a support adjustable to clear said portion of said means.

21. In a sheet feeding magazine, a frame work, a movable support associated therewith for advancing a pack of sheets, a rocker member connected with said support for moving the same, a supporting member carrying said framework and being revoluble on a. vertical axis, an upright reciprocating rod and a connection between said rod and rocker member swiveled at the axis of rotation of the supporting member. v

22. In a sheet feeding magazine, a. framework, a movable support associated therewith for advancing a pack of sheets, a. driving member connected with the support for moving the same, a mounting, the framework being adapted to swing on said mounting and an actuator for the driving member swivellingly connected therewith in the axis upon which said" framework swings.

23. A sheet feeding magazine including a framework" for a pack of sheets, and a mounting for the framework comprising a vertical post angularly and longitudinally adjustable, a horizontal mounting member able with respect thereto.

24. In a sheet feeding magazine, a frames work to receive a pack of sheets and a horizontally swinging and vertically adjustable support for the framework, said framework being mounted on said support for horizontal adjustment laterally and longitudinally and for vertically angular adjustment laterally and longitudinally.\

25. In a sheet feeding magazine, a framework to receive a pack of sheets and a horizontally swinging suppo-rt for the framework, said fran'iework being mounted on said support for vertically angular adjustment longitudinally.

26. In a sheet feeding magazine, a framework to receive a pack .of sheets and a' horizontally swinging support for the frame work, said framework being mounted on said support for horizontal adjustment laterally.

27. In a sheet feeding magazine, a framework to receive a pack of sheets and a horizontally swinging support for the framework, said framework being mounted on said support for horizontal adjustment longitudinally.

28. In a sheet feeding magazine, a frameworkllto receive a pack of sheets and a hori zonta ly swinging support for the framework, said framework being mounted on said support for vertically angular adjustment laterally.

29. In a sheet feeding magazine, an iiiclined bottom rest for supporting a pack of sheets on edge, an inclined movable back rest for the pack, a rocker member, mechanism adapted to be actuated by said rocker member to advance the pack and maintain the front sheet thereof at a given sheet receivin position, said mechanism being normally isconnected from said rocker member, and means causing said mechanism to connect and cooperate with said rocker member as the pack diminishes.

30' In a sheet feeding magazine, an in-- means causing said mechanism to connect and co-operate with said driving member as the pack diminishes.

31. The combination with a sheet feeding element adapted to take sheets at a given receiving position, of a rest for supporting a pack of sheets on edge, a movable member for advancing the pack along said rest, positively acting mechanism for advancing said member, 'said mechanism being normally inoperative, a movable support, a gauge thereon, means associated with said positively acting mechanism to move the support and carry the gauge clear of the pack during the taking of a sheet therefrom by said feeding element, yielding means independent of said advancing mechanism to move the support and carry the gauge toward the pack, the yielding throw of said gauge being limited by the pack when the first sheet thereof approximates said receiving position, said gauge acting within its yielding throw beyond such position to render the pack advancing mechanism operative to shift the diminished pack andadvance the first sheet thereof toward said sheet receiving position.

32. The combination with a sheet feeding element adapted to takesheets at a given receiving position, of a movable member for advancing a pack of sheets, mechanism for moving said member including a rocker-member and a revoluble element, the rocker-meniber having a constant movement forth and back, a vibrating pack gauge movable toward and from the pack, the rocker-member on one throw thereof serving to move the gauge from the pack, means for connecting the rocker-member with the revoluble element during such throw of the rocker-member, said means being normally automatically rendered inoperative, yielding means independent of said rocker-member for moving movable back rest for the pack, mechanism for moving said back rest including driven means and driving means normally disconnected from said driven means, a vibrating pack gauge, said-driving means serving to move the gauge away from the pack, a spring independent of said driving means for moving the gauge in the direction of the pack, said gauge, when permitted by the pack to move past position approximating said sheet receiving position, being adapted to cause said driving means and driven means to be connected.

34. The combination with a sheet feeding element adapted to take sheets at a given receiving position, of a movable member for advanoingya packof sheets, means for advancing said member, said means embodying cooperating-parts including a ratchet and a pawl normally swung clear and disengaged from the ratchet, a vibrating pack gauge movable in the direction of the pack and back again, said gauge in its normal movement in the direction of the pack being adaptedito cause the engagement of said pawl with said ratchet and, when arrestedby the pack, being ineffective in bringing about the engagement of said pawl with said ratchet.

In testimony whereof, we have signed our names to this specification.

ABEL KLUGE.

ENEVAL KLUGE. 

